Psychology Commons^™

Exercise, Cognition, And Cannabis Use In Adolescents, Ileana Pacheco-Colón

FIU Electronic Theses and Dissertations

Heavy and/or chronic cannabis use has been associated with neurocognitive impairment and decline, often in domains such as memory and executive functioning. On the other hand, exercise has been linked to positive effects on brain and cognitive health across the lifespan, as well as to better substance use outcomes. Despite this, little is known about the ways in which exercise could help prevent or ameliorate adverse cannabis-related outcomes among adolescents.

Through three separate studies, the current dissertation examines interrelations among exercise, cognition, and cannabis use in children and adolescents in an effort to determine whether exercise can prevent or ameliorate …

The Impact Of Stress On Episodic Memory In The Workplace, Jennifer Houston

FIU Electronic Theses and Dissertations

The purpose of this dissertation was threefold: to identify the relationship between experience of stress and episodic memory encoding and retrieval, to examine the interpersonal factors of personality and psychopathology that impact how individuals cope with or mitigate workplace stress, and to pinpoint how interpersonal differences and memory processes impact the workplace outcomes of job satisfaction and motivation. The results suggest that the relationship between work stressors and memory processes does exist, that personality and psychopathology play a significant role in the relationship between stress and memory, and that the experience of negative memories moderates the relationship between work stress …

Assessing Cognitive Interview Mnemonics And Their Effectiveness With Non-Native English Speakers, Bryan Keith Wylie

FIU Electronic Theses and Dissertations

The cognitive interview is a widely recommended forensic interviewing strategy which elicits more details than comparison interviews. However, little research has attended to which of its component mnemonics drive the overall effect. Furthermore, some mnemonics—like asking witnesses to recall in reverse order—are cognitively demanding. Responding to cognitively demanding interview mnemonics may be challenging for witnesses who are already under heavy cognitive load, such as non-native English speakers. Speaking a second language is a cognitively difficult task that may leave non-native English speakers with limited cognitive resources to devote to complex interviewing mnemonics. Other mnemonics, though, may be particularly beneficial for …

A Field Study Examining The Effect Of High Intoxication Levels And Identification Format On Witnesses' Memory For Faces And Events, Christopher Altman

FIU Electronic Theses and Dissertations

Members of the legal system (e.g., experts, jurors, investigators) are often skeptical of the information provided by intoxicated witnesses given the negative stigma surrounding alcohol and memory. However, studies examining the relationship between alcohol and witness memory often find that alcohol has no effect on peoples’ recall or their ability to identify a previously seen face. While insightful, the validity of these findings has been questioned given the low-moderate blood alcohol concentration (BAC) levels tested in these predominantly laboratory-based studies, which may not be high enough to consistently expose the cognitive deficits alcohol is expected to create. The present study …

Eliciting A Perpetrator Description Using The Cognitive Interview: Influences On Investigative Utility, Geri Satin

FIU Electronic Theses and Dissertations

The Cognitive Interview (CI) has been shown in over one hundred studies to enhance eyewitness recall. However, no study has explored whether the CI improves police job performance. The current study was the first to test the practical value of the CI in a criminal investigation, testing participants’ performance on key police tasks using either a perpetrator description elicited from a CI or from a standard police interview (SI).

In an earlier study, student witnesses were exposed to a simulated robbery and were then interviewed using either a CI or an SI to elicit a description of the robber (comprised …

Eyewitness Choosing Behavior: The Role Of Ecphoric Experience And Non-Memorial Cues, Brian S. Cahill

FIU Electronic Theses and Dissertations

Researchers’ attempts at understanding the processes underlying witness choosing behavior have focused on applying models that predict that identifications will be primarily driven by memorial factors. However, research has shown that several non-memorial variables affect witness choosing behavior (e.g., administrator influence, clothing bias, co-witness information); thus a full understanding of the processes underlying witness choosing behavior needs to account for these effects. While the memory-based models do attempt to provide explanations for the effects of non-memorial based variables on choosing behavior they all do so within a memorial context. However, I will argue a lineup task is not simply a …

Attentional Competition: Weapon Focus, Encoding Time, And Memory Accuracy Correlations Between Crime Scene Items, Seyram Kekessie

FIU Electronic Theses and Dissertations

The present study examines the relationships between recognition and recall accuracy of faces, and recognition and recall accuracy of objects. Secondly, this study examines the influence of weapon presence on description and identification accuracy, and whether encoding time moderates the effect. 713 participants watched an image that was either displayed for five seconds or twenty seconds, and either included a weapon or no weapon. Subsequently, they were asked to give descriptions of what they saw before viewing a lineup that either included the perpetrator or was made up of innocent suspects. Results indicated that witnesses’ description accuracy of the crime …

Memory For Contingent Versus Noncontingent Events, Maricel Cigales

FIU Electronic Theses and Dissertations

Twenty-four 7.5- to 8-month old infants were presented with two manipulanda and given either behavior-contingent or noncontingent experience with an object. Infants in the contingent group learned and remembered the controlling action for up to 1 week (t(11)=2.83, p